Digital transmission system employing identifiable marker streams on pulses to fill all idle channels
    8.
    发明授权
    Digital transmission system employing identifiable marker streams on pulses to fill all idle channels 失效
    数字传输系统在脉冲上使用可识别的标记流以填充所有空闲通道

    公开(公告)号:US3603739A

    公开(公告)日:1971-09-07

    申请号:US3603739D

    申请日:1969-12-17

    Inventor: EDSON JAMES O

    CPC classification number: G08C15/12

    Abstract: N-digital-sources distributed along a one-way transmission system are multiplexed by having the first such source insert its information in the first time slot of a frame which is defined by apparatus associated with the first source and predetermined pulse signals in each of the other time slots. Apparatus associated with the next source along the transmission system recognizes the location of the second time slot of the frame by examining the received signal to ascertain the existence of one of the predetermined signals in one time slot and a signal not having the characteristics of one of said predetermined signals in the preceding time slot. The apparatus associated with the second source then deletes the predetermined signal from the second time slot and inserts its information in that slot. This process is repeated by each source along the transmission line, with each source inserting its information in the next succeeding time slot.

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